[mythtv-users] A test for anyone using vdpau on 32-bit x86, especially with 30.0

[beppo]

On 5/19/19, Tom Dexter <digitalaudiorock at gmail.com[1]> wrote:
>/ I'm trying to narrow down some vdpau decode issues with some (but not/
>/ all) h264 videos as discussed here:/
>
>/ https://lists.gt.net/mythtv/users/625246[2]/
>
>/ I could use a favor in the form of a quick test from anyone here is/
>/ using vdpau on 32 bit x86...especially anyone running version 30.0. If/
>/ you could try playing this clip:/
>
>/ http://jell.yfish.us/media/jellyfish-60-mbps-hd-h264.mkv[3]/
>
>/ ...and see if it falls back to software decoding or if it uses vdpau./
>/ For example from the playback menu Playback -> Playback Data, and see/
>/ if it shows "H264 vdpau" or "H264 ffmpeg". That would be a huge help./
>
>/ The failure of the vdpau decode for me seems to be related to the/
>/ change in 30.0 to replace the ffmpeg avcodec_decode_video2 call with 2/
>/ calls...one of which (avcodec_send_packet) is returning an/
>/ AVERROR_INVALIDDATA error causing the fallback to software. I'm only/
>/ guessing that it might be a 32 bit specific issue, because Peter (see/
>/ the related bug) couldn't reproduce the failures./
>
>/ The videos where I have issues decode and play fine with xine using/
>/ vdpau, and I just verified that the version of xine-libs I'm using is/
>/ still using the old avcodec_decode_video2 as was MythTV 29.1./
>
>/ Thanks in advance!/
>/ Tom/
>
> I've added a few notes regarding tests I've done to the related bug:
>
> https://code.mythtv.org/trac/ticket/13223[4]
_>_
> As noted there I've also reverted to 29.1 and can confirm that the
> problem videos play with vdpau decoding just fine. Again, I have no
> idea as to whether this is possibly a 32-bit only issue or not, but
> I'm hoping someone else might be able to duplicate the issue. Thanks!
> Tom

Hi Tom,
I have two ASRock ION 330HT https://www.asrock.com/nettop/NVIDIA/ION%20330HT/
and I can reproduce the fallback to software decoded video, or better an flip-book @ 10
frames per sec.
1. ION is 18.04 Ubuntu 32bit
2. ION is 16.04 Ubuntu 32bit
both maschines are on MythTV 30.0/fixes

How can I help?

Beppo



--------
[1] http://lists.mythtv.org/mailman/listinfo/mythtv-users
[2] https://lists.gt.net/mythtv/users/625246
[3] http://jell.yfish.us/media/jellyfish-60-mbps-hd-h264.mkv
[4] https://code.mythtv.org/trac/ticket/13223
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